Stop-motion for textile-machines.



PATEN TED AUG. 9, 1904. P. HARDMAN. STOP MOTION FOR TEXTILE MACHINES;

APPLIOATIOH FILED JUNE 6.1904.

N0 MODEL.

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flktomc J IMDZM UNITED STATES Patented. August 9, 1904.

PATENT OFFICE.

AMERICAN THREAD OOMPA NY,

CORl?()RA'.l..lON OF NEW JERSEY.

OF JERSEY CITY, NEW JERSEY, A

STOP-MOTION FOR TEXTILE-MAC HINESI.

SPECIFICATION forming part of Letters Patent No. 767,055, dated August 9, 1904. Application filed .l'une 6,19%. Serial No. 211,250. No model.)

To all whom it natty concern.-

Be it known that 1, PETER HARDMAN, a citizen of the United States, residing at Williinantic, in the county of Windham, State of Connecticut, have invented certain new and useful Improvements in Stop-Motions for Textile-Machines, of which the following is a 'full, clear, and exact description.

My invention relates to textile machinery, and particularly to a stop device for use in connection with winding machines, &c. 1' have shown my invention asapplied to a winding apparatus for a coarse yarn; and the object is to check the winding whenever a slug or knot in the thread approaches the machine.

In the accompanying drawing the single figure illustrates such portions of a machine as are essential to a clear understanding of my invention. l have shown the preferred form only of my invention in said drawing.

1 is the frame or standard.

2 is a driving roll or drum, itself being rotated or driven in any suitable manner.

3 is a toothed wheel rotated by suitable means for instance, a belt 4, leading from the driving-drum 2 to a suitable pulley 5, fixed on the same shaft with the toothed wheel 3.

6 is a spool or bobbin carried by frame 7, the latter being hinged at 8 to an arm 9, the latter being pivoted at 10. Any. suitable means may be provided for swinging the lever 7 so as to cause the spool or bobbin 6 to bear against the face of the driving-drum 2. The means shown comprises a cord 11, controlled by a weight 12. v

13 is a spacer suitably mounted at 1a, the free end of said spacer projecting toward the space between the surface of the drum 2 and the surface of the spool or bobbin 6. When the bobbin 6 r is arranged at the elevation shown in solid lines in the drawing, its surface or the surface of any thread carried thereby will bear against the surface of the driving-drum 2 and be rotated thereby. If, however, the support 7 descends and the spool or bobbin 6 assumes the position indicated in dotted-lines in the drawing, its surface will stand back of the spacer 13, which latter will hold it away from contact with the surface of the driving-drum 2, when the spool or bobbin 6 will remain idle.

15 represents thread leading to the spool or is set forth in detail in my Patent No. 750,850,

dated February 2, 190 1, and therefore need not be described atlength herein. Suliice it to say the knot-catcher includes a thread-guide 18 and a swinging L-shaped lever 19, one end of which projects into the guidelS and acts as a gate, so that when a .knot or slug in the thread encounters said guide and gate the lever 19 will be operated, raising its horizontal arm. a bar or turnbuckle 20, the opposite end of which engages with a lever 21. This latter is mounted upon a trigger-frame 22, which is pivoted at 23. The, trigger-frame 22 has an To this arm of said lever is connected extension 24:, which normally engages with engaged, whereupon it will descend by gravity, carrying down the spool or bobbin 6 until it engages with the spacer 13, which holds it away from contact with the driving-drum 2. The knot-catcher frame has a fixed mounting on the triggenframe 22.

When a knot or slug in the thread 15 encounters the gate of the catching device, the lever 19 will be elevated, which in turn tilts the lever 21, so that its nose will stand in the path of rotation of the toothed wheel 3. As said wheel 3 rotates constantly with the drivingdrum 2, one of the teeth will engage with the end of the lever 21, and thus bodily tilt the trigger 22, which releases the arm 9, where upon the lever 7 descends and carries down the spool 6, as before described. The extension 9 on the lever 9 will then arrange itself in and chafing of the yarn on the spool or bobbin by the surface of the drum 2 should said bobbin be stopped by reason of any slug or knot engaging with theknot-catcher and not broken thereby and enables the operator to splice or repair the yarn. It is clear that the function of the knot-catcher in this case is rather that of an operating means for the trigger of the stop-motion than as a means to break the thread. WVhile it is true that it may break the thread, nevertheless if it does not the apparatus will operate quite as well, since the spool 6 will be cast off from contact with the driving-drum and the winding stopped.

What I claim is 1. In adevice of the character described, the combination of a driving-drum, a bobbin-carrying arm adapted to hold the bobbin in con- ,tact with said drum, a knot-catching device with releasing means operated by said knotcatching device for causing said bobbin to be thrown out of engagement with said drum.

2. In a mechanism of the character described, the combination of a bobbin-carrying arm, means for rotating said bobbin, a knotoatching device having a swinging gate and means operated by the movement of said gate for forcibly releasing said bobbin-carrying arm and disconnecting the driving means.

3. In a mechanism of the character described, the combination of means for rotating a bobbin, a knot-catching device having aswinging gate, a rotating member, a pivoted arm, a connection between said arm and said gate whereby on the operation of said gate said arm will engage said rotating member and means operated by the movement of said arm when engaged by said rotating member for causing the cessation of rotation of said bobbin.

4. In a mechanism of the character described, the combination of a tilting arm, a bobbin carried thereby, means for rotating said bobbin, a trigger holding said arm in position, a knot-catching device and means operated thereby for forcibly releasing said trigger.

5. A mechanism of the character described includingthe combination of a pivoted trigger, a rotating member, a knot-catcher having a swinging gate, an arm carried by said trigger, means of connection between said arm and gate whereby on the operation of said gate said arm will be operated by said rotating member to operate said trigger.

6. In a mechanism of the character described, the combination of a bobbin-carrier, a trigger for holding the same in its operative position, an arm carried by said trigger, a knot-catching device connected to said arm and means for forcibly engaging said arm to release said trigger.

7. In a mechanism of the character described, the combination of a bobbin-carrier, a driving means, a trigger for maintaining said bobbin-carrier in its normal position, a knot-catching device carried by said trigger and means operated by the gate of said device for releasing said trigger.

Signed at Willimantic, Connecticut, this 31st day of May, 1904.

PETER HARDMAN.

Witnesses:

E. S. Boss, DWIGHT A. LYMAN. 

